Tropical sea temperatures in the high-latitude South Pacific during the Eocene

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  2. Dr Luke Handley
Author(s)Hollis CJ, Handley L, Crouch EM, Morgans HEG, Baker JA, Creech J, Collins KS, Gibbs SJ, Huber M, Schouten S, Zachos JC, Pancost RD
Publication type Article
ISSN (print)0091-7613
ISSN (electronic)1943-2682
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Sea-surface temperature (SST) estimates of similar to 30 degrees C from planktic foraminifera and archaeal membrane lipids in bathyal sediments in the Canterbury Basin, New Zealand, support paleontological evidence for a warm subtropical to tropical climate in the early Eocene high-latitude (55 degrees S) southwest Pacific. Such warm SSTs; call into quest-ion previous estimates based on oxygen isotopes and present a major challenge to climate modelers. Even under hypergreenhouse conditions (2240 ppm CO2), modeled summer SSTs for the New Zealand region do not exceed 20 degrees C.
PublisherGeological Society of America
NotesISI Document Delivery No.: 403QK Times Cited: 1 Cited Reference Count: 39
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